Leases (Details 1) - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 28, 2019
ROU assets - operating leases	$ 2,733	$ 2,133
ROU assets - finance leases	299	318
ROU assets	3,032	2,451
Current lease liabilities - operating leases	1,472	961
Current lease liabilities - finance leases	81	80
Noncurrent lease liabilities - operating leases	1,318	1,220
Noncurrent lease liabilities - finance leases	217	238
Total lease liabilities	3,088	2,499
Right of Use Asset
ROU assets - operating leases	2,733	2,133
Property and Equipment, Net
ROU assets - finance leases	$ 299	$ 318